Releasable compression device for use with a crushing mill or th

Details Releasable compression device for use with a crushing mill or th Releasable compression device for use with a crushing mill or th

1976-09-03

1978-02-21

Lake, Roy

Solid material comminution or disintegration

Processes

Miscellaneous

241231, 241232, B02C 432

Patent

active

040748669

ABSTRACT:
A conventional rolling or crushing mill is provided with a fixed roller and an adjustable roller carried in a pivotable support to allow adjustment of the size of a nip formed between the rollers. Adjustment of the nip dimension is accomplished by operatively connecting the pivotable support between an upper and a lower threaded nut carried on a pivotably mounted threaded rod. Between the connection between the pivotable roller support and the lower nut is a hydraulically actuated cylinder into which is introduced a hydraulic fluid at a selected pressure from a supply to maintain the support against the upper nut under pressure and thereby maintain the adjustable roller under a like pressure during the crushing operation. If a foreign object becomes engaged in the nip, whereby the crushing pressure is exceeded, the size of the nip increases forcing fluid from the cylinder and into an accumulator connected in the supply so as to allow the foreign object to pass without unduly damaging the rollers.

REFERENCES:
patent: 2713460 (1955-07-01), Atkinson
patent: 3099406 (1963-07-01), Kautz
patent: 3208678 (1965-09-01), Pick et al.
patent: 3478972 (1969-11-01), Hansen
patent: 3938732 (1976-02-01), Schrimper et al.

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